Children&#39;s activity set



FIG. 1 is a front view of a children's activity set showing the new design;

FIG. 2 is a perspective view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof, shown without the spiral notebook for convenience of illustration;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a children's activity set, as shown and described. 